Abstract
Porous Fe3O4/C composite nanobelts have been successfully synthesized by carbonization of the electrospun polyacrylonitrile/polymethylmethacrylate/ferric acetylacetonate nanobelts. SEM observation reveals that the products are porous nanobelts in morphology. Electrical and magnetic properties analyses show that the porous Fe3O4/C composite nanobelts possess tunable electrical conductivity and magnetic performance. The N2 adsorption–desorption measurements demonstrate the surface area and the pore size of the porous Fe3O4/C composite nanobelts are enlarged with the increase of Fe3O4 contents. The obtained porous Fe3O4/C composite nanobelts exhibit efficient adsorption property for organic dyes in water and excellent magnetic separation performance. The isotherms and kinetics of adsorption process are determined and analyzed in detail, which are found to obey the Langmuir isotherm model and the pseudo-second-order kinetic model for Rhodamine B, respectively. The excellent adsorption capacity can be attributed to the porous structures, which will make them promising adsorbents for water treatment. This work provides a new insight into the design and development of functional carbon-based nanomaterials.
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Acknowledgments
This work was financially supported by the National Natural Science Foundation of China (NSFC 50972020, 51072026), Specialized Research Fund for the Doctoral Program of Higher Education (20102216110002, 20112216120003), the Science and Technology Development Planning Project of Jilin Province (Grant Nos. 20130101001JC, 20070402), the Science and Technology Research Project of the Education Department of Jilin Province during the eleventh 5-year plan period (Under Grant No. 2010JYT01).
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Han, C., Ma, Q., Dong, X. et al. In situ synthesis of porous Fe3O4/C composite nanobelts with tunable magnetism, electrical conduction and highly efficient adsorption characteristics. J Mater Sci: Mater Electron 26, 2457–2465 (2015). https://doi.org/10.1007/s10854-015-2706-z
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DOI: https://doi.org/10.1007/s10854-015-2706-z